Bill acceptor

Abstract

A bill acceptor is constructed to include a housing, the housing having a base for holding a banknote for examination, a first light emitter adapted to emit infrared light onto the banknote carried on the base of the housing for examination, a second light emitter adapted to emit ultraviolet light onto the banknote for visual examination, an image sensor adapted to pick up infrared light reflected from the banknote carried on the base of the housing and to convert received light signal into image signal, and a display adapted to display image signal obtained from the image sensor for verifying the authenticity of the banknote.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to bill acceptors and, more particularly, to such a bill acceptor, which uses infrared light to fetch the image of inks of the bill to be examined and ultraviolet light to scan fluorescent fibers of the bill, enabling the user to verify the authenticity of the bill accurately.[0003]2. Description of the Related Art[0004]Fast development of high technology greatly improves our living standard. However, there are people using high-tech products as tool to make illegal acts, for example, to print counterfeit bills. People usually verify the authenticity of a banknote by touching or visual examination. It is difficult to verify the authenticity of a banknote in this way. There are bill acceptors which use ultraviolet light to scan the inks, hidden line, or embossed stamp. However, these bill acceptors cannot eliminate the interference of ambient light. The interference of ambient light may caus...

AI Technical Summary

Benefits of technology

[0006]The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a bill acceptor, which uses infrared light to fetch the image of inks of the bill to be examined and ultraviolet light to scan fluorescent fibers of the bill, enabling the user to verify the authenticity of the bill accurately. It is another object of the present invention to provide a bill acceptor, which eliminates the interference of external light, improving the accuracy of the verification. According to one aspect of the present invention, the bill acceptor comprises a housing, the housing having a base for holding a banknote for examination, an infrared light emitter adapted to emit infrared light onto the banknote carried on the base of the housing for examination, an ultraviolet light emitter adapted to emit ultraviolet light onto the banknote for visual examination, an image sensor adapted to pick up infrared light reflected from the banknote carried on the base of the housing and to convert received light signal into image signal, and a display adapted to display image signal obtained from the image sensor for verifying the authenticity of the banknote. According to another aspect of the present invention, the housing comprises two light-tight side panels vertically disposed at two sides of the base and adapted to eliminate interference of external light.

Problems solved by technology

However, there are people using high-tech products as tool to make illegal acts, for example, to print counterfeit bills.

It is difficult to verify the authenticity of a banknote in this way.

However, these bill acceptors cannot eliminate the interference of ambient light.

The interference of ambient light may cause a false determination.

Ordinary people may not have sufficient knowledge to verify the authenticity of newly issued banknotes.

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